Famous European alpine herb unrivalled as a bitter tonic. Root tincture made with brandy strengthens the human system, particularly in cases of weak digestion and lack of appetite. Difficult to germinate: viability is usually quite low, never exceeding 40%. Requires a cold period (4-5 weeks at 5°C/40°F) or 24 hours in 40-70 ppm gibberellic acid for success. Maintain at 10-15°C/50-60°F until germination is complete.